There's a recent thread on this where lots of people weighed in. Generally, it was felt they were ok if: the mounting surfaces were perfectly flat; the car is not driven hard; and if lugnuts are checked regularly for tightness. Some people were dead set against them no matter what. Try a forum search.
i cannot say it is the best thing to do. i am running a set in the rear of my demon for now till finish the bbp upgrade. i have seen several types of adapters and some are alot better than others. i have the strong heavier made kind on mine. i still want them off but for now they will have to do. i have never had any problems with mine at all........use your own judgement here
I ran them on a few cars with no problems. Always check to make sure the lugs are tight, before you go cruisin'. I always considered them a temporary fix, until I could upgrade to the larger bolt pattern.
i think you would be ok with these. i have had mine on for 4 years now, although i do want them off now that i have the new axles for my car......good luck!
I have been known to cut corners, but this is one place I would not go. There are quality billet pieces out there (at least what I have heard), but I wouldn't trust them.